The site was identified as important in 1994 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.Populations meeting IBA criteria ('trigger species'):
|Species||Current IUCN Red List Category||Season||Year(s)||Population estimate at site||IBA criteria met|
|Great Bustard Otis tarda||VU||passage||1972-1974||53-100 individuals||A1, B2|
The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (1994).
|Habitat (IUCN level 1)||Habitat detail||Extent (% of site)|
|Land-use||Extent (% of site)|
BirdLife International (2023) Important Bird Area factsheet: Shirvan area. Downloaded from http://datazone.birdlife.org/site/factsheet/shirvan-area-iba-iran-islamic-republic-of on 26/09/2023.